To confirm, were you a part of YPP earlier and now demonetized, or is it the first time you've applied and were rejected? Also, share a screenshot of your channel monetization page: https://goo.gl/297Xrv . We'd like to look into it.
While we can't share specifics about it, this typically means that the content isn't original/auto-generated. Here's more about reused content: https://goo.gl/E5dgGo . Note: You can always reapply for YPP again in 30 days. Hope this clarifies.